CN110254378A - Vehicular electric power source device and vehicle power supply control circuit - Google Patents
Vehicular electric power source device and vehicle power supply control circuit Download PDFInfo
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- CN110254378A CN110254378A CN201910555183.6A CN201910555183A CN110254378A CN 110254378 A CN110254378 A CN 110254378A CN 201910555183 A CN201910555183 A CN 201910555183A CN 110254378 A CN110254378 A CN 110254378A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of vehicular electric power source device and vehicle power supply control circuits, wherein vehicle power supply control circuit includes: wake-up module, the control signal output of the wake-up module is connected to the enabled pin of power supply chip, the wake-up module exports in powered on moment and wakes up enable signal to the power supply chip, so that the power supply chip is powered to MCU；Self-locking module, the self-locking module is connected with the wake-up module, the self-locking module controls the wake-up module when the wake-up module exports the wake-up enable signal and locks to the wake-up enable signal, so that the power supply chip persistently gives the MCU to power, so that the MCU completes to start.The present invention, without big capacitance capacitor is arranged in wake-up circuit, not only greatly reduces cost by increasing latching circuit on the basis of traditional wake-up circuit, additionally it is possible to solve the problems, such as that MCU can not start when quick power-on and power-off.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of vehicle power supply control circuit and one kind have this vehicle-mounted
The vehicular electric power source device of power control circuit.
Background technique
In the related technology, the moment that vehicle power supply powers on wakes up power supply chip by wake-up circuit, thus power supply chip
It powers to MCU and starts MCU, and after MCU completes starting, control information is exported by MCU to control power supply chip dimension
Hold open state.If it is intended to power supply chip can steady operation after opening, it is necessary to MCU complete in a short period of time starting,
Initialization and output control information.However, longer the time required to the start-up course of MCU at present, this is just needed in wake-up circuit
The big capacitance charge and discharge capacitance of middle setting maintains open state to ensure power supply chip, and the charge and discharge capacitance cost of big capacitance compared with
Height, and can have the case where capacitor is not substantially discharged and causes MCU that can not start in quick power-on and power-off.
Summary of the invention
The present invention is directed to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, of the invention
One purpose is to propose a kind of vehicle power supply control circuit, by increasing latching circuit on the basis of traditional wake-up circuit,
Without big capacitance capacitor is arranged in wake-up circuit, cost is not only greatly reduced, additionally it is possible to when solving quick power-on and power-off
The problem of MCU can not start.
It is another object of the present invention to propose a kind of vehicular electric power source device.
In order to achieve the above objectives, a kind of vehicle power supply control circuit that one aspect of the present invention embodiment proposes, comprising: wake up
Module, the control signal output of the wake-up module are connected to the enabled pin of power supply chip, and the wake-up module is powering on
Moment, which exports, wakes up enable signal to the power supply chip, so that the power supply chip is powered to MCU；Self-locking module, it is described from
Lock module is connected with the wake-up module, and the self-locking module is controlled when the wake-up module exports the wake-up enable signal
The wake-up module locks the wake-up enable signal, so that the power supply chip persistently gives the MCU to power, so as to
The MCU completes starting.
The vehicle power supply control circuit proposed according to embodiments of the present invention is exported in powered on moment by wake-up module and is waken up
Enable signal is to power supply chip, to wake up power supply chip, so that power supply chip is powered to MCU, so that MCU starts to start, and
Wake-up module output controls wake-up module by self-locking module when waking up enable signal, so that wake-up module makes wake-up
Energy signal is locked, and be can control power supply chip in this way and is maintained steady operation after unlatching, so that power supply chip persistently gives MCU
Power supply, it is ensured that MCU completes starting, without big capacitance capacitor is arranged in wake-up module, not only greatly reduces cost, also
The problem of MCU can not start caused by not being substantially discharged when avoiding quick power-on and power-off due to big capacitance capacitor, mentions significantly
High circuit reliability.
In addition, vehicle power supply control circuit set forth above can also have following additional skill according to embodiments of the present invention
Art feature:
Specifically, the wake-up module includes: first resistor, and one end and the operating voltage of the first resistor provide end phase
Even；First capacitor, one end of the first capacitor are connected with the other end of the first resistor；First diode, described first
The anode of diode is connected with the other end of the first capacitor；Second resistance, one end of the second resistance and described first
The cathode of diode is connected；The base stage of first triode, first triode is connected with the other end of the second resistance, institute
The emitter ground connection of the first triode is stated, the collector of first triode is connected with the enabled pin of the power supply chip；
3rd resistor, the 3rd resistor are connected between the base stage and emitter of first triode；4th resistance, the described 4th
One end of resistance is connected with the collector of first triode, and the other end of the 4th resistance and the operating voltage provide
End is connected.
Specifically, the self-locking module includes: the second triode, the emitter of second triode and work electricity
Pressure provides end and is connected；5th resistance, the 5th resistance are connected between the base stage and emitter of second triode；6th
One end of resistance, the 6th resistance is connected with the base stage of second triode, the other end of the 6th resistance with it is described
The collector of first triode is connected；7th resistance, one end of the 7th resistance and the collector phase of second triode
Even, the other end of the 7th resistance is connected with one end of the second resistance.
Further, the wake-up module further include: the second capacitor, one end of second capacitor is respectively with described first
The cathode of diode is connected with one end of the second resistance, the other end ground connection of second capacitor.
Optionally, the wake-up module further include: third capacitor, one end of the third capacitor and first triode
Collector be connected, the other end of the third capacitor is grounded after being connected with the emitter of first triode.
Optionally, the vehicle power supply control circuit, further includes: sleep block, the suspend mode control of the sleep block
Signal receiving end is connected with the MCU, and the output end of the sleep block is connected with the wake-up module, and the sleep block connects
The dormant control signal that the MCU is issued is received, and the wake-up module is controlled according to the dormant control signal and stops output institute
Wake-up enable signal is stated, so that the MCU enters dormant state.
Specifically, the sleep block includes: the second diode, and the anode of second diode is as the suspend mode control
Signal receiving end processed；Third transistor, the base stage of the third transistor are connected with the cathode of second diode, and described
The emitter of three triodes is grounded, and the collector of the third transistor is connected with one end of the second resistance.
Optionally, the vehicle power supply control circuit, further includes: starting module is maintained, the maintenance starting module
Starting maintains signal receiving end to be connected with the MCU, and the output end for maintaining starting module is connected with the wake-up module, institute
It states and starting module is maintained to receive the maintenance enabling signal that the MCU is issued, and called out according to maintenance enabling signal control
Awake module persistently exports the wake-up enable signal, so that the power supply chip persistently gives the MCU to power.
Specifically, the maintenance starting module includes: third diode, is opened described in the anode conduct of the third diode
Dynamic to maintain signal receiving end, the cathode of the third diode is connected with one end of the second resistance.
In order to achieve the above objectives, another aspect of the present invention embodiment also proposed a kind of vehicular electric power source device comprising on
The vehicle power supply control circuit stated.
Vehicular electric power source device according to an embodiment of the present invention, by above-mentioned vehicle power supply control circuit, without waking up
Big capacitance capacitor is set in circuit, not only greatly reduces cost, additionally it is possible to which what MCU can not start when solving quick power-on and power-off asks
Topic, substantially increases reliability.
Detailed description of the invention
Fig. 1 is the block diagram according to the vehicle power supply control circuit of the embodiment of the present invention；
Fig. 2 is the schematic diagram according to the vehicle power supply control circuit of one embodiment of the invention；
Fig. 3 is the block diagram according to the vehicular electric power source device of the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In order to better understand the above technical scheme, the exemplary reality that the present invention will be described in more detail below with reference to accompanying drawings
Apply example.Although showing exemplary embodiment of the present invention in attached drawing, it being understood, however, that may be realized in various forms this hair
It is bright and should not be limited by the embodiments set forth herein.It is to be able to thoroughly understand this on the contrary, providing these embodiments
Invention, and the scope of the present invention can be fully disclosed to those skilled in the art.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
Below just with reference to the accompanying drawings to describe the present invention the vehicle power supply control circuit of embodiment and have the vehicle power supply
The vehicular electric power source device of control circuit.
Referring to fig. 1 and fig. 2, the vehicle power supply control circuit that the embodiment of the present invention proposes, including 10 He of wake-up module
Self-locking module 20.
The control signal output DCDCEN of wake-up module 10 is connected to the enabled pin of power supply chip 100, wake-up module
10 export wake-up enable signal to power supply chip 100 in vehicle powered on moment, work to wake up power supply chip 100, with
Power supply chip 100 is set to power to MCU, MCU starts to start；Self-locking module 20 is connected with wake-up module 10, and self-locking module 20 is being called out
Control 10 pairs of wake-up enable signals of wake-up module lock when module 10 of waking up output wakes up enable signal, to maintain power supply core
100 steady operation of piece, so that MCU completes to start, realizes mesh of the starting from locking so that power supply chip 100 is persistently powered to MCU
, it is not necessary that big capacitance capacitor is arranged in wake-up module 10, not only greatly reduce cost, additionally it is possible to when solving quick power-on and power-off
The problem of MCU can not start.
According to one embodiment of present invention, as shown in Fig. 2, wake-up module 10 include first resistor R1, first capacitor C1,
First diode D1, second resistance R2, the first triode Q1,3rd resistor R3 and the 4th resistance R4.
Wherein, one end of first resistor R1 provides end VB with operating voltage and is connected, one end of first capacitor C1 and the first electricity
The other end for hindering R1 is connected, and the anode of first diode D1 is connected with the other end of first capacitor C1, one end of second resistance R2
It is connected with the cathode of first diode D1, the base stage of the first triode Q1 is connected with the other end of second resistance R2, the one or three pole
The emitter of pipe Q1 is grounded, and the collector of the first triode Q1 is connected with the enabled pin of power supply chip 100, and 3rd resistor R3 connects
It connects between the base stage and emitter of the first triode Q1, the collector phase of one end of the 4th resistance R4 and the first triode Q1
Even, the other end of the 4th resistance R4 provides end VB with operating voltage and is connected.
Specifically, in vehicle powered on moment, operating voltage provides end VB and provides operating voltage Vb to wake-up module 10, and first
Capacitor C1 short circuit, operating voltage Vb pass through first resistor R1, first capacitor C1, first diode D1, second resistance R2 and third
The pressure divider circuit of resistance R3 composition generates partial pressure, the first triode Q1 is opened, by the control signal output of wake-up module 10
DCDCEN is pulled down to ground, so that exporting low level wakes up enable signal to the enabled pin of power supply chip 100, wakes up power supply chip
100。
At this point, wake-up module 10 is exporting low electricity if not having self-locking module 20 in above-mentioned vehicle power supply control circuit
When the flat enabled pin for waking up enable signal to power supply chip 100, first capacitor C1 is started to charge, and filling in first capacitor C1
In electric process, partial pressure on 3rd resistor R3 is synchronous to be reduced, by time T (specifically by first resistor R1, first capacitor C1, the
One diode D1, second resistance R2 and 3rd resistor R3 these components parameter determine), the partial pressure on 3rd resistor R3 is less than
When the cut-in voltage of the first triode Q1, the first triode Q1 is turned off, and the control signal output DCDCEN of wake-up module 10 is defeated
High level signal out.Therefore, if it is desired to energy steady operation, MCU are needed first capacitor C1's after keeping power supply chip 100 to open
Starting, initialization and output control information are completed in charging time to maintain the first triode Q1 a series of processes such as to open,
And the time that these processes need is long, this just needs the C1 of big capacitance, the capacitor of big capacitance often more difficult acquirement or at
This is higher, and there are occur due to big capacitance capacitor is not substantially discharged when quick power-on and power-off to causing MCU that can not start
Situation.
In conclusion in an embodiment of the present invention, by increasing latching circuit on the basis of traditional wake-up circuit, from
Without big capacitance capacitor is arranged in wake-up circuit, cost is not only greatly reduced, additionally it is possible to solve MCU when quick power-on and power-off
The problem of can not starting.
According to one embodiment of present invention, as shown in Fig. 2, self-locking module 20 includes the second triode Q2, the 5th resistance
R5, the 6th resistance R6 and the 7th resistance R7.
Wherein, the emitter of the second triode Q2 provides end VB with operating voltage and is connected, and the 5th resistance R5 is connected to second
Between the base stage and emitter of triode Q2, one end of the 6th resistance R6 is connected with the base stage of the second triode Q2, the 6th resistance
The other end of R6 is connected with the collector of the first triode Q1, the collector phase of one end of the 7th resistance R7 and the second triode Q2
Even, the other end of the 7th resistance R7 is connected with one end of second resistance R2.
Specifically, when wake-up module 10 exports low level and wakes up enabled pin of the enable signal to power supply chip 100, work
Make the operating voltage Vb that voltage offer end VB is provided and ground is pulled down to by the 5th resistance R5 and the 6th resistance R6, is led by dividing
Logical second triode Q2, thus the partial pressure that operating voltage Vb is made up of the 7th resistance R7, second resistance R2 and 3rd resistor R3
Circuit generates partial pressure, opens the first triode Q1, continues for the control signal output DCDCEN of wake-up module 10 to be pulled down to ground,
Enable signal is waken up to the enabled pin of power supply chip 100, so that power supply chip to which wake-up module 10 persistently exports low level
100 continually and steadily work, it is ensured that MCU completes starting, achievees the purpose that starting locks certainly, and due to not needing that big capacitance is arranged
Capacitor C1, not only reduce cost, it is thus also avoided that cause when quick power-on and power-off since big capacitance capacitor is not substantially discharged
MCU the problem of can not starting, substantially increase circuit reliability.
Optionally, as one embodiment, as shown in Fig. 2, wake-up module 10 further includes the second capacitor C2, the second capacitor C2
One end be connected respectively with one end of the cathode of first diode D1 and second resistance R2, the other end of the second capacitor C2 ground connection.
Wherein, the second capacitor C2 plays the role of voltage regulation filtering to operating voltage Vb.
Optionally, as one embodiment, as shown in Fig. 2, wake-up module 10 further includes third capacitor C3, third capacitor C3
One end be connected with the collector of the first triode Q1, the other end of third capacitor C3 is connected with the emitter of the first triode Q1
After be grounded.
Wherein, third capacitor C3 plays the role of filtering out signal interference.
Further, in one embodiment of the invention, as shown in Fig. 2, above-mentioned vehicle power supply control circuit is also wrapped
Include sleep block 30, the dormant control signal receiving end OFF of sleep block 30 is connected with MCU, the output end of sleep block 30 with
Wake-up module 10 is connected, and sleep block 30 receives the dormant control signal that MCU is issued, and is controlled and waken up according to dormant control signal
Module 10 stops output and wakes up enable signal, so that power supply chip 100 stops working, so that MCU enters dormant state.
Specifically, as shown in Fig. 2, sleep block 30 includes the second diode D2 and third transistor Q3, the second diode
The anode of D2 is connected as dormant control signal receiving end, the base stage of third transistor Q3 with the cathode of the second diode D2, the
The emitter of three triode Q3 is grounded, and the collector of third transistor Q3 is connected with one end of second resistance R2.
That is, when MCU output high sleep controls signal to dormant control signal receiving end OFF, the three or three
Pole pipe Q3 conducting, so that one end of second resistance pulls down to ground, so that the first triode Q1 is turned off, the control letter of wake-up module 10
Number output end DCDCEN exports high level signal, so that power supply chip 100 stops working, and then MCU enters dormant state.
Optionally, as one embodiment, as shown in Fig. 2, above-mentioned vehicle power supply control circuit further includes maintaining starting
Module 40 maintains the starting of starting module 40 that signal receiving end MCUEN is maintained to be connected with MCU, maintains the output of starting module 40
End is connected with wake-up module 10, maintains starting module 40 to receive the maintenance enabling signal that MCU is issued, and according to maintenance enabling signal
Controlling wake-up module 10, persistently output wakes up enable signal, so that power supply chip 100 is persistently powered to MCU.
Specifically, as shown in Fig. 2, maintaining starting module 40 includes third diode D3, the anode of third diode D3 is made
Signal receiving end is maintained for starting, the cathode of third diode D3 is connected with one end of second resistance R2.
That is, when MCU output high level maintenance enables signals to starting maintenance signal receiving end MCUEN, so that
One end of second resistance R2 is pulled upward to high level, it is ensured that unlatching electricity of the partial pressure greater than the first triode Q1 on 3rd resistor R3
Pressure, the first triode Q1 maintain conducting, so that wake-up module 10, which persistently exports low level, wakes up enable signal to power supply chip 100
Enabled pin so that power supply chip 100 continually and steadily work, thus power supply chip 100 persistently give MCU power supply.
In conclusion the vehicle power supply control circuit proposed according to embodiments of the present invention, is powering on wink by wake-up module
Between export wake up enable signal to power supply chip, to wake up power supply chip, thus power supply chip give MCU power supply so that MCU starts
Starting, and wake-up module is controlled by self-locking module when wake-up module exports and wakes up enable signal, so that waking up mould
Block is locked to enable signal is waken up, and be can control power supply chip in this way and is maintained steady operation after unlatching, so that power supply core
Piece is persistently powered to MCU, it is ensured that MCU completes starting, without big capacitance capacitor is arranged in wake-up module, not only drops significantly
Low cost, it is thus also avoided that MCU can not start caused by not being substantially discharged when quick power-on and power-off due to big capacitance capacitor
Problem substantially increases circuit reliability.
In addition, as shown in figure 3, the embodiment of the present invention also proposed a kind of vehicular electric power source device 300 comprising above-mentioned vehicle
Carry power control circuit 200.
Vehicular electric power source device according to an embodiment of the present invention, by above-mentioned vehicle power supply control circuit, without waking up
Big capacitance capacitor is set in circuit, not only greatly reduces cost, additionally it is possible to which what MCU can not start when solving quick power-on and power-off asks
Topic, substantially increases reliability.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It is interpreted as that identical embodiment or example must be directed to.Moreover, particular features, structures, materials, or characteristics described
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, those skilled in the art can
Different embodiments or examples described in this specification are engaged and be combined.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of vehicle power supply control circuit characterized by comprising
Wake-up module, the control signal output of the wake-up module are connected to the enabled pin of power supply chip, the wake-up mould
Block exports in powered on moment and wakes up enable signal to the power supply chip, so that the power supply chip is powered to MCU；
Self-locking module, the self-locking module are connected with the wake-up module, and the self-locking module exports institute in the wake-up module
It controls the wake-up module when stating wake-up enable signal to lock the wake-up enable signal, so that the power supply chip is held
Continue and power to the MCU, so that the MCU completes to start.
2. vehicle power supply control circuit as described in claim 1, which is characterized in that the wake-up module includes:
First resistor, one end of the first resistor provide end with operating voltage and are connected；
First capacitor, one end of the first capacitor are connected with the other end of the first resistor；
First diode, the anode of the first diode are connected with the other end of the first capacitor；
Second resistance, one end of the second resistance are connected with the cathode of the first diode；
The base stage of first triode, first triode is connected with the other end of the second resistance, first triode
Emitter ground connection, the collector of first triode is connected with the enabled pin of the power supply chip；
3rd resistor, the 3rd resistor are connected between the base stage and emitter of first triode；
One end of 4th resistance, the 4th resistance is connected with the collector of first triode, the 4th resistance it is another
One end provides end with the operating voltage and is connected.
3. vehicle power supply control circuit as claimed in claim 2, which is characterized in that the self-locking module includes:
Second triode, the emitter of second triode provide end with the operating voltage and are connected；
5th resistance, the 5th resistance are connected between the base stage and emitter of second triode；
One end of 6th resistance, the 6th resistance is connected with the base stage of second triode, the 6th resistance it is another
End is connected with the collector of first triode；
One end of 7th resistance, the 7th resistance is connected with the collector of second triode, the 7th resistance it is another
One end is connected with one end of the second resistance.
4. vehicle power supply control circuit as claimed in claim 2 or claim 3, which is characterized in that the wake-up module further include:
Second capacitor, one end of second capacitor one end with the cathode of the first diode and the second resistance respectively
It is connected, the other end ground connection of second capacitor.
5. vehicle power supply control circuit as claimed in claim 2 or claim 3, which is characterized in that the wake-up module further include:
Third capacitor, one end of the third capacitor are connected with the collector of first triode, the third capacitor it is another
One end is grounded after being connected with the emitter of first triode.
6. vehicle power supply control circuit as claimed in claim 2 or claim 3, which is characterized in that further include:
The dormant control signal receiving end of sleep block, the sleep block is connected with the MCU, the output of the sleep block
End is connected with the wake-up module, and the sleep block receives the dormant control signal that the MCU is issued, and according to the suspend mode
It controls signal and controls the wake-up module stopping output wake-up enable signal, so that the MCU enters dormant state.
7. vehicle power supply control circuit as claimed in claim 6, which is characterized in that the sleep block includes:
Second diode, the anode of second diode is as the dormant control signal receiving end；
Third transistor, the base stage of the third transistor are connected with the cathode of second diode, the third transistor
Emitter ground connection, the collector of the third transistor is connected with one end of the second resistance.
8. vehicle power supply control circuit as claimed in claim 2 or claim 3, which is characterized in that further include:
Starting module is maintained, the starting for maintaining starting module maintains signal receiving end to be connected with the MCU, and the maintenance is opened
The output end of dynamic model block is connected with the wake-up module, described that starting module is maintained to receive the maintenance starting letter that the MCU is issued
Number, and the wake-up module is controlled according to the maintenance enabling signal and persistently exports the wake-up enable signal, so that the electricity
Source chip persistently gives the MCU to power.
9. vehicle power supply control circuit as claimed in claim 8, which is characterized in that the maintenance starting module includes:
The anode of third diode, the third diode maintains signal receiving end, the third diode as the starting
Cathode be connected with one end of the second resistance.
10. a kind of vehicular electric power source device, which is characterized in that including vehicle power supply control as claimed in any one of claims 1-9 wherein
Circuit processed.
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| CN201910555183.6A CN110254378A (en) | 2019-06-25 | 2019-06-25 | Vehicular electric power source device and vehicle power supply control circuit |
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| CN201910555183.6A CN110254378A (en) | 2019-06-25 | 2019-06-25 | Vehicular electric power source device and vehicle power supply control circuit |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570644A (en) * | 2019-09-24 | 2019-12-13 | 广州华端科技有限公司 | Remote control device |
| CN110641399A (en) * | 2019-10-14 | 2020-01-03 | 广州创锐车用电器有限公司 | Power management circuit, method and motor vehicle with power management circuit |
| CN110920392A (en) * | 2019-11-19 | 2020-03-27 | 珠海格力电器股份有限公司 | Power supply control circuit, power supply control method and new energy automobile |
| CN111077974A (en) * | 2019-11-07 | 2020-04-28 | 江苏理工学院 | Remote wake-up power supply device based on differential communication |
| CN111555947A (en) * | 2020-04-22 | 2020-08-18 | 中冶南方（武汉）自动化有限公司 | MCU low-power consumption dormancy awakening system |
| CN111959307A (en) * | 2020-07-13 | 2020-11-20 | 华为技术有限公司 | Charging module and electric automobile |
| CN114301106A (en) * | 2021-04-30 | 2022-04-08 | 华为数字能源技术有限公司 | Wake-up circuit of charging controller, vehicle-mounted charger and new energy automobile |
| CN114815675A (en) * | 2021-01-29 | 2022-07-29 | 成都鼎桥通信技术有限公司 | Micro control unit awakening system and method, intelligent cabin and automobile |
| WO2024109359A1 (en) * | 2022-11-24 | 2024-05-30 | 宁德时代新能源科技股份有限公司 | Bms sleep wake-up circuit and method, and bms and electric device |
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2019
- 2019-06-25 CN CN201910555183.6A patent/CN110254378A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570644B (en) * | 2019-09-24 | 2020-09-22 | 广州华端科技有限公司 | Remote control device |
| CN110570644A (en) * | 2019-09-24 | 2019-12-13 | 广州华端科技有限公司 | Remote control device |
| CN110641399A (en) * | 2019-10-14 | 2020-01-03 | 广州创锐车用电器有限公司 | Power management circuit, method and motor vehicle with power management circuit |
| CN111077974B (en) * | 2019-11-07 | 2024-02-20 | 江苏理工学院 | Remote wake-up power supply device based on differential communication |
| CN111077974A (en) * | 2019-11-07 | 2020-04-28 | 江苏理工学院 | Remote wake-up power supply device based on differential communication |
| CN110920392A (en) * | 2019-11-19 | 2020-03-27 | 珠海格力电器股份有限公司 | Power supply control circuit, power supply control method and new energy automobile |
| CN111555947A (en) * | 2020-04-22 | 2020-08-18 | 中冶南方（武汉）自动化有限公司 | MCU low-power consumption dormancy awakening system |
| CN111555947B (en) * | 2020-04-22 | 2021-11-19 | 中冶南方（武汉）自动化有限公司 | MCU low-power consumption dormancy awakening system |
| CN111959307A (en) * | 2020-07-13 | 2020-11-20 | 华为技术有限公司 | Charging module and electric automobile |
| CN114815675A (en) * | 2021-01-29 | 2022-07-29 | 成都鼎桥通信技术有限公司 | Micro control unit awakening system and method, intelligent cabin and automobile |
| CN114815675B (en) * | 2021-01-29 | 2023-10-20 | 成都鼎桥通信技术有限公司 | Micro control unit awakening system and method, intelligent cabin and automobile |
| EP4084311A1 (en) * | 2021-04-30 | 2022-11-02 | Huawei Digital Power Technologies Co., Ltd. | Wake-up circuit for charge controller, on-board charger, and new energy vehicle |
| CN114301106A (en) * | 2021-04-30 | 2022-04-08 | 华为数字能源技术有限公司 | Wake-up circuit of charging controller, vehicle-mounted charger and new energy automobile |
| WO2024109359A1 (en) * | 2022-11-24 | 2024-05-30 | 宁德时代新能源科技股份有限公司 | Bms sleep wake-up circuit and method, and bms and electric device |
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